robinson crusoe island....but dont want to look like him

please come talk to me about hair products....I am lucky enough to be going away in a few weeks to a little maldives island for some serious R&R.....no TV, no shoes....and not taking the straightners!My hair will be in sea water and sun everyday so what can I take with me to give my hair a holiday treat as well? Can you recommend a nice shampoo and conditioner and also a product that I can put into wet/damp hair and then leave to dry naturally. I have chin length, highlighted, slightly layered hair, medium thickness, left to its own devises it will go wavy.Any recommendations would be lovely - save me looking like a scarecrowx